is bleach episode 129 filler?

At nighttime in Karakura Town, having heard the whistle-like melody and sensed the murky Reiatsu of the Arrancar she fought earlier that day, 10th Division Lieutenant Rangiku Matsumoto tells Shōta Toyokawa to hurry back to Orihime Inoue's apartment by himself, but Shōta asserts that he is coming too, exasperating Rangiku with his bravado before she realizes that the Arrancar could have allies nearby and agrees to let Shōta come along as long as he stays close to her, which he acknowledges with surprise.